Mechanic&#39;s tool



" A. ozEIIowIcz.

-MECHANICS TOOL.

APPLICATION FILED FEB. e, 1919.

Patented June 1, 1920.v

Ar'roRNcY ALEXANDER oznnowrcz, or DETROIT, MICHIGAN.

MECHANICS TOOL.

Learner.

Speccation of Letters Patent.

Patented June i, 1920.

Application led February 6*, 1919. Serial No. 275,396. l

To all whom t may concern Be it known that I, ALEXANDER @ZERO- wioz,citizen of Russia, residing at Detroit, county of Wayne, State -ofMichigan, have invented a certain new and useful Improvement inMechanics Tools, and declare the following to be a full, clear, andeXact description of the same, such as will enable others skilled in theart to which it pertains to make and use the same,y reference being hadto the accompanying drawings, which form a part of this specification.

My invention relates to a mechanics tool, and one of its objects is tocombine in a single instrument a plural number of tools that are not amere aggregation of unrelated elements but are` adapted toV coperatewith each other-in the performance o f the necessary successiveoperations required inthe production of certain manufactured articlesthe several elements being combined in a single unit that ythey maybeready for instant progressive use or service and whereby they may not bemislaid or lost.

Another object ofY the invention is to provide means whereby it may berapidly and accurately adjusted for the performance of its severalkfunctions.

Another feature of the device! is its adaptability to be folded into acompact form l convenient for carrying in the pocket.

The instrument comprises the following elements combined in a framewhich coperates in their adjustment vand support :-a pair ofV Compassesor dividers, the legs of which telescope ina hinged lportion of theframe having a link connection with a graduated nut, the latter beingadapted to indicatethe degree of adjustment given to the legs :-insideand outside caliper legs also supported inthe hinged portion of theframe,-the adjustment of which is also predetermined by the graduatednut z--a plumb bob pointer which also serves as the sup'- port on whichthe'V graduated nut is mounted and coperates therewith ;-a level whichcoperates with the plumb, and also with the caliper and legs of thedivider in determining certain measurements :-and a marking gagecomprising a rotatable marker mounted on one end of the divider legsz-the same clamping elements whichserve to secure the legs of thedivider serving to secure said legs. when adjusted as a marking gage.

With the foregoing and other objects in view, which will appear as thedescription proceeds, the invention resides -in the 'combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes may be made inthe precise embodiment herein disclosed lwithout departing from thespirit of the same.

In the accompanying drawings Figure 1 is a side elevation of the devicewith the divider legs extended.

Fig. 2 isa side elevation of the same, with a portion of the supportingframe in section, and showing in dotted lines one vpair of the caliperlegs extended.A i Y K Fig. 3 is a cross-sectional view on line 3 3' ofFig. 1, the lower portion ofthe spiral groove being show-n in dottedlines.V

Fig. t is a sectional vlew on line 4 4 of .Fig. l, showing in dottedlines one yportion yof the base frame extended when used in leveling ormaking other measurements.

Fig. 5 is a cross-sectional view of a detail of construction taken online 5-5 of Fig. 2, showing the slidable clamping member employed tosecure thev divider leg and marking gage.

Referring now to the letters of reference placed upon the drawings :-y

A, denotes a portion of the frame, having lateral extensions A1,dovetailed thereto to supply when adjusted a relatively long base forthe level B;-in turn pivoted by al pin 3 or other suitable pivotin anopening in the frame A, and having a pointer B1, cooperatingwith certaingraduations B2, in the wall of the frame surrounding kthe opening, thatthe angularity of the part tested may be determined. The level B whichis of the ordinary construction, is provided at the top with a pointer,and its lower portion constitutes a weight which maintains the pointerin a perpendicular position and enables the pointer to coperate with thegraduations B2. A2, A2 designate swinging members of the fra-me A,pivoted at a, thereto. A3, kare covers hinged to each side of theswinging members A2, adapted to close and maintain in position whenadjusted, the legs of the respective inside and outside calipers C, C1.The calipers are secured to the swinging members A2 by an overlappingend portion of the frame A4, in addition to the hinged covers A3, whichlatter are provided with inwardly directed pins D, adapted to enterapertures D1, in the legs of the calipers to secure them in theiradjusted positions upon .the covers being closed over the legs of thecalipers The coversV are also 5 provided with a suitable detent or latche,

to secure them when closed.

E, indicates a plumb bob pointer, consisting of a rod fitted with adetachable pointed end El, which has a socket and tenon connection withthe rod and which may be removed should occasion require in order toprovide greater latitude in the use of the caliper legs when makingcertain measurements.

F, indicates a rotatable nut mounted upon the rod E, and the latter isprovided with a spiral groove E2, to receive a ball G, partially lodgedin a groove F1, 'formed in the nut F ;-the ball being held againstdisplacement by a screw H, extending through the wall of the nut. I,designates an open slidable frame mounted on the rod E, adaptedtoreceive the nut F, and travel with it along the rod. J, J, are linksconnecting the slidable frame I, with the respective swinging membersA2, of the frame A, and upon ro- Vtating the nut F, the swinging legswith the respective divider or caliper legs carried thereby, may begiven any predetermined V adjustment as determined by the graduations F2, upon the nut in conjunction with the pointer I1, on the frame I. Thespiral groove E2 and the ball G' provide a rapid and easy adjustment forthe pivoted member A and enable the nut to coperate with a groove of agreater pitch and consequently there is provided more rapid adjustmentthan with an ordinary thread and nut.

K, denotes a set screw in frame I, adapted to bear upon the rod E, tosecure the parts when adjusted.

L, L, indicates cam-shaped clamping devices having projecting trunnionsL1, extending into longitudinal grooves L2, in the walls of the swingingmembers A2, of the frame, adapted to secure the divider legs vor gagerods P, in their respective adjusted positions z--the clamping membersbeing adapted to slide in the grooves Ito accommodate themselves to theposition of the legs.

M, designates a loop in the frame A, to receive a connecting cord (notshown) that the device may serve as a plumb, the rod E, and its pointedend F11 serving as the pointen N, is a rotatable disk on the end ofthedivider legs P, to provide a scratch gage the legs being adjustedthrough openings in the frame provided for their passage.

Having indicated the several parts by reference letters, theconstruction and operation of the device will be readily understood.

When folded the device may be readily carried in the pocket, and it maybe used as a plumb by attaching a cord to the ring or loop M or as alevel by adjusting the lateral extensions A1 of the frame. When a cordis attached to the loop M the device operates as a plumb bob and isarran ed in an inverted position, the pointed end t constituting thepoint of the plumb bob. The sections or members A1, which are mounted ina dovetailed guide 2 are adapted to slide inwardly and outwardly andwhen the sections or members A1 are extended they cooperate with thepivoted level B and the graduations B2 will indicate the variations ofan inclined surface from a horizontal plane.

When it is desired to describe a predetermined arc with the dividers, ormake certain measurements with: the calipers, the swinging members ofthe frame carrying these parts may be adjusted to any desired degreewithin the capacity of the device by the adjustment of the graduated nutF. It Y will be noted that the covers A3, hinged to the swinging membersof the frame, perform a double function, namely, to secure the legs ofthe calipers against displacement when adjusted and to provide a smootheven surface that the device may be conveniently handled.

Having described my invention what I claim is 1. A device of thecharacter described, the combination of a Jframe having a pair ofmembers pivoted thereto, a plurality of adjustable legs carried by themembers, a rod having a spiral groove extending from the frame betweenthe members, a nut mounted upon the rod, a ball carried by the nut andprojecting into the spiral groove in the rod, a slidable frame sleevedupon the rod and embracing the nut, whereby it may travel therewithalong the rod, and links connecting the slidable frame with therespective members of said first named frame.

2. In a device of the character described, the combination of a framehaving a pair of members pivoted thereto, a plurality of adjustable legscarried by the members, means for respectively securing said legswhenadj usted, a rod having a spiral groove iixed to the frame andextending midway between the swinging members, agrooved nut mounted uponthe rod, a ball lodged in a groove in the nut and extending into thespiral groove in the rod, a slidable :trame j sleeved upon the rod andpartially inclosing the nut, whereby it may travel with the nut uponadjusting the latter, and links vconnecting the slidable frame with theswinging members of the rst named frame.

3. In a device of the character described, the combination lof a frame,having a pair of pivoted members, adjustable legs slidable on thepivoted members, covers hinged to the pivoted members and arranged toembrace and adjustably secure the said legs to the pivoted members, andmeans for adjusting the pivoted members. v

4. A device of the class described including a frame provided with apair of pivoted members, a plurality of adjustable legs carried by eachof the pivoted members and located at opposite sides of the same, andcovers hinged to the said members and embracing the said legs andprovided with means for securing the legs intheir adjustment, and meansfor adjusting the pivoted members.

5. In a device of the character described,

the combination of a frame having a pair of members pivoted thereto ofchannel like form in cross-section and provided with grooves, adjustablelegs lodged in said channels, and slidable cam-shaped clamping membershaving trunnions projecting into said grooves, whereby upon adjustingthe cam-shaped clamping members the adjustable legs may be secured tothe members of the frame. Y

6. A device of the character described including a frame, having a pairof pivoted members of channel-like form in cross section, adjustablelegs lodged in the channels, means for securing such legs in theiradjust-- ment, eXteriorly arranged legs located at opposite sides of thepivoted members, and covers hinged to the pivoted members and embracingthe exterior legs and provided with means Jfor securing the same intheir adjustment.

In testimony whereof, I sign this specification in the presence of tvvoWitnesses.

ALEXANDER OZEROWICZ. -Y

Witnesses:

S. E. THOMAS, JOHN CONSIDINE, J r.

